
Mercury (satellite)
    
    WordNet
        noun
(1)   Temperature measured by a mercury thermometer
"The mercury was falling rapidly"
(2)   The smallest planet and the nearest to the sun
(3)   (Roman mythology) messenger of Jupiter and god of commerce; counterpart of Greek Hermes
(4)   A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
        
